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* Version 86.txr-86Kaz Kylheku2014-03-161-1/+1
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* * configure: Detect _wspawn* functions.Kaz Kylheku2014-03-161-0/+21
| | | | * stream.c (run): Implement using _wspawnvp on MinGW.
* On platforms with sigaltstack, TXR programs can now catch theKaz Kylheku2014-03-131-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | segmentation fault that occurs when running out of stack space, and escape by throwing an exception. Also, bugfix: save and restore the gc enable/disable state. Without this, if we are ever running cod in a gc disabled state and it jumps out, gc stays disabled. * configure: added check for sigaltstack. * gc.h (gc_enabled): Declaration added for existing variable. * signal.c (is_cpu_exception): New static function. (sig_handler): For cpu_exception type signals that pertain to the execution of some instruction, turn on async_sig_enabled, so that the signal is not deferred. Otherwise we will just return without calling the user-defined handler, restart the instruction and get into a loop. Also, disable gc around the handler just in case. One issue is that we might be on an alternate stack, which gc won't like. (setup_alt_stack, teardown_alt_stack): New static functions. (set_sig_handler): If we have sigaltstack, and are asked to set up a SEGV handler, then set it up on the alternate stack. * signal.h (extended_jmp_buf): Adding new member, gc. (extended_setjmp, extended_longjmp): use gc member to save and restore the gc_enable state across setjmp and longjmp.
* * configure: new test for fcntl.Kaz Kylheku2014-03-111-0/+24
| | | | | | | | | | | * stream.c (open_process): Fixed off-by one erroneous value of nargs, causing memory leak of one string. Fixed memory leak on fork failure. Fixed a deadlock that can occur in the pipe close function when multiple pipes are in existence. This is fixed by setting the FD_CLOEXEC flag on the pipe file descriptor. Without this, one child process can hold another's pipe open, causing that other one not to terminate when we're trying to shut it down, resulting in that child blocked on a write, while we block on waitpid.
* Version 85.txr-85Kaz Kylheku2014-03-081-1/+1
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* Version 84.txr-84Kaz Kylheku2014-03-071-1/+1
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* Version 83txr-83Kaz Kylheku2014-03-021-1/+1
| | | | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version, set date. * configure (txr_ver): Bumped. * RELNOTES: Updated * dep.mk: Updated.
* * configure: changed numerous "if ! conftest" tests to "if conftest",Kaz Kylheku2014-03-011-66/+67
| | | | swapping around the consequent and alternative clauses.
* * configure (conftest, conftest_o): New functionsKaz Kylheku2014-03-011-71/+62
| | | | | | Use functions throughout tests instead of repeated code for removing target, invoking make with redirection and testing for existence of target.
* Version 82.txr-82Kaz Kylheku2014-02-271-1/+1
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* Version 81txr-81Kaz Kylheku2014-02-261-1/+1
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES, txr.vim: Updated.
* * configure: Make it an error to have implicit function declarations byKaz Kylheku2014-02-251-10/+14
| | | | | | | | | | | means of -Werror=implicit-function-declarations. Fix broken mkdir and mknod tests. Regenerate config.make if we add -U__STRICT_ANSI__ to the compiler options, so that later tests benefit from this. Regenerate config.make right away if adding -D_DARWIN_C_SOURCE. This allows the makedev test to pass. * stream.c: Include <sys/types.h> for makedev. (mknod_wrap): Don't rely on makedev wrappers to be there; test.
* * configure: Use -Werror= on the missing prototypes andKaz Kylheku2014-02-251-1/+1
| | | | strict prototypes warnings; these should be errors.
* * configure: Added feature tests for makedev, link/symlink/readlink,Kaz Kylheku2014-02-251-0/+89
| | | | | | | | | | | | | | mkdir and mknod. * eval.c (eval_init): Wrap #ifdefs around the registrations of the wrappers for these functions. * stream.c (mkdir_wrap): Wrap in #ifdef HAVE_MKDIR, and provide a Windows version if HAVE_MKDIR is missing, but HAVE_WINDOWS_H is true. (makedev_wrap, major_wrap, minor_wrap): Wrap with #if HAVE_MAKEDEV. (mknod): Use #if HAVE_MKNOD. (symlink_wrap, link_wrap, readlink_wrap): Wrap with #if HAVE_SYMLINK.
* Version 80txr-80Kaz Kylheku2014-02-171-1/+1
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES, txr.vim, dep.mk: Updated.
* Version 79txr-79Kaz Kylheku2014-02-111-1/+1
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* Version 78.txr-78Kaz Kylheku2014-02-061-1/+1
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* * configure: remove stray debugging printf from theKaz Kylheku2014-01-311-1/+0
| | | | GNU Make check. This was introduced in May 2012.
* Version 77txr-77Kaz Kylheku2014-01-291-1/+1
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* Version 76txr-76Kaz Kylheku2014-01-231-1/+1
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* Version 75.txr-75Kaz Kylheku2014-01-161-1/+1
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* Version 74txr-74Kaz Kylheku2014-01-131-1/+1
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES, txr.vim, dep.mk: Updated.
* Mac OSX Upkeep.Kaz Kylheku2014-01-131-9/+21
| | | | | | | | | * configure: (need_svid_source, need_bsd_source): Variables removed. (need_darwin_c_source): New variable. Detect Apple environment and add -D_DARWIN_C_SOURCE, which is needed to reveal some functions in headers. * signal.c (sig_init): Wrap #ifdefs around SIGPOLL; it is not defined on Darwin.
* * configure: Detect platforms which don't reveal declarationsKaz Kylheku2014-01-101-0/+23
| | | | | | | | | | | | | | in C headers which are extensions to standard C, like popen or fileno, in response to standard feature selection macros like -D_POSIX_SOURCE. MinGW and Cygwin are offenders. These platforms hide the declarations when gcc is in -ansi mode, by testing for __STRICT_ANSI__. Turns out, however, that -U__STRICT_ANSI__ on the gcc command line strips this away, causing the declarations to be revealed. * lib.c, parser.l, stream.c, utf8.c: Removed the declarations which compensated for the above problem. Yippee! Fuck you, stupid Cygwin troglodytes, and the MinGW horse you rode in on. http://cygwin.com/ml/cygwin/2011-10/msg00131.html
* * configure (lang_flags): Let us switch from using _XOPEN_SOURCE=2Kaz Kylheku2014-01-101-15/+54
| | | | | | | | | | | | | | | | | | | to _POSIX_C_SOURCE=199309L and _BSD_SOURCE. In the .exe suffix test, try harder to redirect ls's output. Test for fork stuff now needs <sys/types.h> evidently; <unistd.h> does not necessarily pid_t, even though it defines functions that return and accept pid_t! The timegm test no longer needs _SVID_SOURCE since _BSD_SOURCE covers it, and so we end up not using _SVID_SOURCE any more. New tests for usleep and nanosleep. The test for setenv is not conditional on timegm failing. * eval.c: Include <time.h> and conditionally <windows.h>. (usleep_wrap): New function. (eval_init): New usleep_wrap function registered as usleep intrinsic. * lib.c: Only define setenv and unsetenv if we don't have timegm, because only in that situation they are used.
* * configure: Generate HAVE_VALGRIND as #define-d to 1, rathernKaz Kylheku2014-01-101-1/+1
| | | | | | | | | | | | | | | than just fdefined. * gc.c: Use #if HAVE_VALGRIND instaed of #ifdef HAVE_VALGRIND, consistently with other HAVE_* config variables. * lib.c: Likewise. * lib.h: Likewise. * txr.c: Likewise. * txr.h: Likewise.
* Long overdue MinGW port maintenance.Kaz Kylheku2014-01-091-17/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile: Use new EXE variable from config.mk. * configure (exe, have_windows_h): New variables. Handle situations with .exe suffix; on MiGW, the rm command doesn't work on executables if the .exe suffix is not given. New tests for localtime_r and gmtime_r. * lib.c: Supply declarations which are missing on MinGW because we use gcc -ansi, because MinGW doesn't follow established conventions like -D_POSIX_SOURCE. Supply definitions for gmtime_r, localtime_r, setenv and unsetenv. * parser.l: Supply declarations which are missing on MinGW. * signal.h (async_sig_enabled): Declare differently based on HAVE_POSIX_SIGS. Misspelled typedef fixed in the code for !HAVE_POSIX_SIGS that has hitherto not been compiled. (sig_mask): Wrap declaration in #ifdef HAVE_POSIX_SIGS because it relies on sigset_t. * stream.c: Supply declarations which are missing on MinGW. Include <windows.h> if we have it. (sleep): Define for Windows. (statf): Handle missing st_blksize and st_blocks members in struct stat. (stream_init): Handle numerous missing S_* macros. * utf8.c: Supply declarations which are missing on MinGW.
* Version 73txr-73Kaz Kylheku2014-01-081-1/+1
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* Merry C++mas!Kaz Kylheku2013-12-251-2/+2
| | | | | | | * configure: Avoid using "new" as identifier in signals test case. * signal.c (set_sig_handler): Fix warning about { 0 } initializer. (sig_mask): Avoid using "new" as identifier.
* Version 72txr-72Kaz Kylheku2013-12-171-1/+1
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* First cut at signal handling support.Kaz Kylheku2013-12-121-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile (OBJS-y): Include signal.o if have_posix_sigs is "y". * configure (have_posix_sigs): New variable, set by detecting POSIX signal stuff. * dep.mk: Regenerated. * arith.c, debug.c, eval.c, filter.c, hash.c, match.c, parser.y, parser.l, rand.c, regex.c, syslog.c, txr.c, utf8.c: Include new signal.h header, now required by unwind, and the <signal.h> system header. * eval.c (exit_wrap): New function. (eval_init): New functions registered as intrinsics: exit_wrap, set_sig_handler, get_sig_handler, sig_check. * gc.c (release): Unused functions removed. * gc.h (release): Declaration removed. * lib.c (init): Call sig_init. * stream.c (set_putc, se_getc, se_fflush): New static functions. (stdio_put_char_callback, stdio_get_char_callback, stdio_put_byte, stdio_flush, stdio_get_byte): Use new functions to enable signals when blocked on I/O. (tail_strategy): Allow signals across sleep. (pipev_close): Allow signals across waitpid. (se_pclose): New static function. (pipe_close): Use new function to enable signals across pclose. * unwind.c (uw_unwind_to_exit_point): use extended_longjmp instead of longjmp. * unwind.h (struct uw_block, struct uw_catch): jb member changes from jmp_buf to extended_jmp_buf. (uw_block_begin, uw_simple_catch_begin, uw_catch_begin): Use extended_setjmp instead of setjmp. * signal.c: New file. * signal.h: New file.
* * configure (config_flags): Variable removed. This was more trouble than itKaz Kylheku2013-12-121-5/+9
| | | | | was worth, and only solved problems caused by not checking that the test program was made all the way to an executable.
* * configure: Fix warnings in test cases for HAVE_FORK_STUFFKaz Kylheku2013-12-121-3/+3
| | | | | | and HAVE_DAEMON. * eval.c: daemon support must be wrapped in #if HAVE_DAEMON
* Bumping copyrights to 2014 and expressing them as year ranges.Kaz Kylheku2013-12-101-1/+1
| | | | Fixing some errors in copyright comments.
* syslog support; bitwise logior and logand functions become variadic.Kaz Kylheku2013-12-101-0/+27
| | | | | | | | | | | | | | | | | | | | * Makefile: Use -iquote to restrict our #include search paths from being processed for #include <...>. Add syslog.o to OBJS-y if have_syslog is y. * configure (have_syslog): New variable, set by detecting syslog API. * eval.c (eval_init): logand and logior registrations changed to go to variadic versions. New syslog variables and functions registered. * lib.c (logandv, logiorv): New functions. * lib.h (logandv, logiorv): Declared. * txr.c (main): Call syslog_init. * syslog.c: New file. * syslog.h: New file.
* Version 71txr-71Kaz Kylheku2013-12-071-1/+1
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated.
* Steps toward fixing an issue: lazy list readahead.Kaz Kylheku2013-12-011-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem is that accurate lazy lists are not suitable for real time use, where we want the TXR program to respond immediately to matching some datum. I'm implementing a simple, naive variant of lazy stream lists which simply populates the lazy cons by reading from the stream when the car or cdr fields are accessed. This type of stream can never be nil (empty list) even if the file is empty; in that case it will be (nil) and in general, it will have a spurious nil item at the end instead of ending in a string. (An adjustment was made in match.c to detect this; more will be needed.) I'm adding attributes to streams so streams can now have a "real-time" attribute. When a lazy string list is constructed over a real-time stream, the simple implementation is used. File streams are automatically real-time if (on Unix) they are tied to tty streams. Tail streams are also real-time. More work is needed to achieve the goal of this change, but this is a big step in the right direction. * configure: Detect isatty function. * lib.c (simple_lazy_stream_func): New static function. (lazy_stream_cons): Use simple implementation for real-time streams. * match.c (match_files): Do not call match_line_completely with a data line that is nil (as a result of simple lazy list over a real-time stream). A nil item in a lazy list of strings is treated as eof. * stream.c (real_time_k): New symbol variable. (struct strm_ops): New members: get_prop, set_prop. (struct stdio_handle): New member: is_real_time. (stdio_get_prop, stdio_set_prop): New static function. (stdio_ops, tail_ops, pipe_ops): stdio_get_prop and stdio_set_prop funtions wired in. (make_stdio_stream_common): Attribute streams as real-time if they are tty devices. (make_tail_stream): Tail streams are real-time attributed. (stream_set_prop, real_time_stream_p): New functions. (stream_init): Initialize real_time_k. * stream.h (real_time_k): Declared. (real_time_stream_p, stream_set_prop): Likewise.
* * configure (config_flags): New variable, allowing us toKaz Kylheku2013-11-291-8/+78
| | | | | | | | | | | | | | | | | | | have stricter diagnosis for configure tests. (have_timegm, need_svid_source, need_bsd_source): New variables. sys/stat.h test only declares static data and compiles an object file. Adding tests for timegm, tzset, setenv and unsetenv. * eval.c (eval_init): Register new intrinsic, make_time_utc. * lib.c (make_time_impl): New static function. (make_time): Reimplemented as call to make_time_impl. (timegm_hack): New conditionally-defined static function. (make_time_utc): New function. * lib.h (make_time_utc): Declared. * txr.1: make-time-utc documented.
* * configure: Detect the daemon function.Kaz Kylheku2013-11-281-0/+22
| | | | | | | | | | * eval.c: Include <unistd.h> conditionally. (errno_wrap, daemon_wrap): New functions. (eval_init): Registered errno_wrap and daemon_wrap as intrinsics under the names daemon and errno. * txr.1: Documented errno and daemon in new UNIX PROGRAMMING section.
* * Changelog: missing entries reconstructed.Kaz Kylheku2013-11-271-2/+11
| | | | | | | | | | | | | * Makefile (conftest.clean): Use @ to suppress output. * configure (have_unistd): New variable. Set true by every successful test that compiles something that contains #include <unistd.h>. HAVE_UNISTD_H is conditionally generated in config.h based on this variable. Minor cleanup. * parser.l: Inclusion of <unistd.h> wrapped in #if/#endif. * stream.c: Conditional inclusion of <unistd.h> based on new HAVE_UNISTD_H symbol.
* * configure: Added check to detect POSIX sleep function.Kaz Kylheku2013-11-271-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * eval.c (eval_init): Register new open_tail function as intrinsic. * match.c (complex_snarf, complex_stream): Update calls to make_stdio_stream and make_pipe_stream to take fewer arguments. (match_files): Support a stream object as a data source specification in place of a string. * parser.l (parse_reset): Update call to make_stdio_stream to take fewer arguments. * stream.c: Inclusion of <unistd.h> made properly conditional. (struct stdio_handle): pid member defined as pid_t only if we have fork functionality, otherwise defined as int. (tail_get_line, tail_get_char, tail_get_byte): New static functions. (tail_ops): New static structure. (make_stdio_stream_common): New static structure. (make_stdio_stream, make_pipe_stream): These functions lose the input and output parameters, which ended up never used. Reimplemented in terms of new common function. (make_tail_stream): New function. (make_pipevp_stream): Reimplemented in terms of new common function. (open_file, open_command): Simplified by removal of useless local variables and their computation, which used to be extra arguments to make_stdio_stream and make_pipe_stream. (open_tail): New function. (stream_init): Calls to make_stdio_stream updated. * stream.h (make_stdio_stream, make_pipe_stream): Declarations updated. (make_tail_stream, open_tail): Declared. * txr.c (txr_main): Calls to make_stdio_stream updated.
* Version 70txr-70Kaz Kylheku2013-11-211-1/+1
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated.
* * Makefile (clean): depends on conftest.cleanKaz Kylheku2013-10-281-2/+1
| | | | | | | | (conftest.clean): New target. * configure: Use "make conftest.clean" to clean up conftest stuff. Note that there was a bug here: brace expansion was used, but the shell is /bin/sh, so conftest.err wasn't being removed.
* Ouch! Turns out the code base has numerous unintendedKaz Kylheku2013-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | deviations from C90, like mixed declations and statements. GCC doesn't diagnose these without the --pedantic flag. * configure: GCC's --ansi flag should be spelled -ansi. * lib.c (split_str, obj_print): Reorder declaration before statements. (make_sym): Fix similar problem by eliminating a statement. (funcall1, funcall2, funcall3, funcall4): Use assignment to initialize local array with non-constant elements. This is actually good for performance because we only initialize those parts of the array that we use. * lib.h (struct func): Change functype member to unsigned, since enum-typed bitfields are a GCC extension. * match.c (ml_all, mf_all): Use assignments to initialize local struct with non-constants. (do_txeval, v_collect): Slightly revise unwinding macrology with help of new macros to avoid mixing declarations and statements. (spec_bind): Removed spurious semicolon from macro expansion. (v_gather): Reorder two lines to avoid mixed decls and statements. (match_filter): Move declaration of ret a few lines up, ahead of statements. * unwind.c (uw_pop_until): New function. * unwind.h (uw_pop_until): Declared. (uw_mark_frame, uw_fast_return): New macros.
* * configure: Change to header block comment generated in config.hKaz Kylheku2013-10-231-1/+1
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* Version 69.txr-69Kaz Kylheku2013-10-231-1/+1
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* Version 68.txr-68Kaz Kylheku2013-10-071-1/+1
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* Version 67Kaz Kylheku2013-07-121-1/+1
| | | | | | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version, set date and documented string-cmp. * configure (txr_ver): Bumped. * eval.c (eval_init): Forgotten string-cmp registered as intrinsic. * txr.vim: Highlighting for string-cmp. * RELNOTES: Updated.
* Version 66.txr-66Kaz Kylheku2013-05-161-1/+1
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* * configure: Added test for <sys/stat.h>Kaz Kylheku2012-09-111-0/+24
| | | | | | | | | | | | | | | * eval.c: New intrinsic functions "stat" and "prop". * stream.c: Include <sys/stat.h> if we have it. (w_stat, statf): New functions. (val dev_k, ino_k, mode_k, nlink_k, uid_k, val gid_k, rdev_k, size_k, blksize_k, blocks_k; val atime_k, mtime_k, ctime_k): New sybol variables. (stream_init): Intern new keywords symbols. * stream.h (statf): Declared. * txr.1: prop documented. Stub for stat created.
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